During testing, one of the C5's door opened. Euro NCAP allowed CitroÅ½n to submit a modified car. The changes were partly successful: during a re-test of its side impact performance, the C5's door moved onto its secondary latch but remained closed. Otherwise, the car's strong passenger cell provided a safe survival space that remained intact. The driver's door could be opened normally after the frontal impact and the footwell retained its shape. The driver's chest hit the steering wheel, increasing the injury risk to this vulnerable body area.